Dripping container cover
A dripping container cover includes: a bottom part; a first pressing part; and a second pressing part including a face facing the first pressing part, wherein the above described face and a face of the first pressing part which faces the second pressing part are provided with projections, and wherein a distance between an end of each of the projections, the end being apart from the bottom part further than the other end, and the bottom part is at least a predetermined value and the projections are arranged within both outermost ranges of the storing part assuming that the storing part is divided into four in a width direction thereof or wherein the above distance is less than a predetermined value and the projections are arranged within central ranges of the storing part assuming that the storing part is divided into four in the width direction.
1. A dripping container cover fitted onto a storing part of a dripping container, a chemical liquid being stored in the storing part, the dripping container cover comprising:
a bottom part;
a first pressing part protruding from the bottom part; and
a second pressing part protruding from the bottom part, the second pressing part including a face facing the first pressing part with a gap between the first and second pressing parts,
wherein a face of the first pressing part which faces the second pressing part, and the face of the second pressing part, which faces the first pressing part, are each provided with projections,
wherein a distance between an end of each of the projections, the end being apart from the bottom part further than the other end, and the bottom part is less than 0.7 times the height of the storing part, which is fitted into the cover, and the projections are arranged only at positions within central ranges of the storing part assuming that the storing part is divided into four in the width direction,
wherein the first pressing part and the second pressing part are board members, and
wherein the gap between extends in the width direction for the entire length of both of the first pressing part and the second pressing part and extends in a direction orthogonal to the width direction from the bottom part to a top end of each of the first pressing part and the second pressing part.
2. The dripping container cover according to claim 1 , wherein the projections of the first pressing part are provided at such positions as to be symmetrical to each other with respect to a center of the storing part in the width direction, and the projections of the second pressing part are provided at such positions as to be symmetrical to each other with respect to a center of the storing part in the width direction.
3. The dripping container cover according to claim 2 , wherein the faces of the first and second pressing parts, which face the second and first pressing parts, respectively, each have a curved concave portion, the curved concave portion including the projections.